<script setup>
    import { getCategoryFilterAPI , getSubCategoryAPI} from '@/apis/category'
    import { ref , onMounted} from 'vue'
    import { useRoute } from 'vue-router'
    import HomeItem from "../Home/components/HomeItem.vue"
    const route = useRoute()

    // 获取面包屑导航数据
    const filterData = ref({})
    const getFilterData = async () => {
    const res = await getCategoryFilterAPI(route.params.id)
    filterData.value = res.result
    }
    onMounted(() => getFilterData())


    
    // 获取基础列表数据渲染
    const goodList = ref([])
    const reqData = ref({
      categoryId: route.params.id,
      page: 1,
      pageSize: 20,
      sortField: 'publishTime'
    })
      
    const getGoodList = async () => {
      const res = await getSubCategoryAPI(reqData.value)
      console.log(res)
      goodList.value = res.result.items
    }
      
    onMounted(() => getGoodList())


    // tab切换回调
    const tabChange = () => {
      console.log('tab切换了', reqData.value.sortField)
      reqData.value.page = 1
      getGoodList()
    }


    // 加载更多
    const disabled = ref(false)
    const load = async () => {
      console.log('加载更多数据咯')
      // 获取下一页的数据
      reqData.value.page++
      const res = await getSubCategoryAPI(reqData.value)
      goodList.value = [...goodList.value, ...res.result.items]
      // 加载完毕 停止监听
      if (res.result.items.length === 0) {
        disabled.value = true
      }
    }

</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${filterData.parentId}` }">{{ filterData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{ filterData.name }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div class="body" v-infinite-scroll="load" :infinite-scroll-disabled="disabled" >
         <!-- 商品列表-->
        <HomeItem v-for="good in goodList" :key="good.id" :goods = "good"></HomeItem>         
      </div>
    </div>
  </div>

</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>